Code:
\documentclass{scrreprt}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[ngerman]{babel}
\usepackage{blindtext}
\usepackage{showframe}
%\usepackage{manuscript}
\renewcommand{\familydefault}{\ttdefault}
\begin{document}
\sloppy
\blindtext
\end{document}
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